Machine for preparing rubber.



Patented May 4, 1915.

INYENTOR JOHN EDWARD omrOn ATTORNEYS JOHN EDWARD POINTON, OF PETERBOROUGII, ENGLAND.

MACHINE FOR PREPARING RUBBER.

Application filed January 21,1914,

T (/l/ whom if m 111 concern ie it known that I. .loiix .lllflVARl) Poix- Tox, subject of the King ot (lreat Britain, residing at 'cr twood Works, leterborough, in the count of North lta'nts. England, engineer, have invented certain new and uset'ul Improvements Relating to Machines for Preparing Rubber, of which the following is a specification.

scribed and claimed ot' the rotating elements and the in!ercommunicating chambers wherein they operate.

Referring to the accom mnying sheet of explanatory drawings, Figure 1 is a sectionai plan and Fig. 2 a sectional end elevation representing, in diagrammatic i'ornnthe application of the invention in one convenient manner to a combined drying or masticating and incorporating machine, provided with a pair ot' intercommunicating chamhers each having a rotatable operating element mounted therein.

The same reference letters in the two views indicate the same or similar parts.

The said rotatable operating elements each consist of a central boss like or barrel poi tion as 11 having a single spiral blade 1) extending along it. .\t one end of each ele ment the spiral blade terminates at the cxtremity ot' the boss, hilt at the other end (which may be termed the leaving end) it falls sutliciently n hort ol' the adjacent x tremity oi the boss to provide a relief or clearance as e For th passage of the matcrial llu-rethrough. The amount of such l aran e is made to suit the degree of pres- -uie that i:- to be imposed upon the material zi i:-- trai r c l through the chambers l i action ot the blades. As will be seen fan] the. drawing the learance spaces c a at the oppo it nd. oi the respe tive lcmei. --x

imb prop ll r or l'utat;

Specification of Letters Patent.

Patented May 4, 1 91 Serial No. 313,501.

ing elements, may be driven in any convenient manner, at equal or varying speeds.

After its traiersc through one chamber, under the operation of the rotating element therein, and its passage therefrom to the adjoining chamber, the material, or the main portion of the same, is in like manner traversed. in the reverse direction, to the leaving end of that chamber and l'rom thence is returned to the tirst named chamber, thus completing the cycle ot movement. This cycle is continuously repeated until the drying or mastication ot the material and the iiworporation therewith oi' the desired in gredients has been i completely etl'ected. During the rotation ol' the blades or operat' ing elements some part of the material under treatment will be forced back through the aforesaid relief or clearance apertures or bypasses c. The provision of such lrv passcs is found to greatly facilitate-the process ot preparing the material for service.

The arrows (I indicate the directions oi rotation of the respective elements, while the arrows c indicate the main directions of traverse oi' the material through the respcc tive intcrcommunicating chambers and tctwecn the, said chambers there is a partitioning ridge as shown extending from end to end of the chamber.

Instead of the axes of the blades being arranged in a horizontal plane the axes may be slightly superimposed or the one higher than the other. The blades may be varied in shape and a bypass such as r: may be made at each end of each blade."

lla\ ing thus described my invention what I claim as new and desire to secure by [at tcrs l'atcnt is;

1. In a rubber preparing machine, the combination of a member comprising intcr communicating chambers, a continuous partition or ridge between said chambers, and propellers in said chambers and bypasses at the end ol the propellers as set tiorth.

2. In a rubber preparing machine the combination with a member comprising intercommunicating chambers acontinuous partition or ridge between the said cham ber a propeller in each chamber, and a by pass at one end only of each propeller, the lrvpasses in the respective ehamber s being locat d at opposite ends.

I. In a rubber preparing machine, the combination of a member comprising intert'uli'liillllh'illih chambers, a continuous paitition or ridge between said chambers, a pro-- peller in each chamber liming a continuous spiral blade, one end of which extends to the end of said chamber, the opposite end of said blade spaced away 'lloll'l its adjacent end of the chamber, to form a by pass. the l) V ]')llSb(H in the rennet-tire chambers being located at opposite ends.

4. In rubber prepariim machines, the combination consis ing of intercommnnicating chamber, a partitionin f ridge between the said chambers and extending trom end to end of the same, propellers in the said chambers, and Irv-passes at the 011th) of the propellers, as se t forth.

5. In ruboer preparing: machines, the coim bination consisting of intcrconnniinicating chambers, a partitioning ridge between the said chambers 11d extending from end to end of the same, a propeller in each chamber, and a by-pass at one end of each propeller, the said bypasses being at opposite ends of the chambers, as set forth.

6. In rubber preparing machines, the. combination consisting of interconmnmicating chambers, a partitioning: ridge betneen the said chambers and extending! tron end to end of the same, a propeller in each chamber having a.eontinuou; spiral blade one end of which coincides with the corresponding end of its chamber while the opposite end talle sulliciently short of the corresponding end of the chamncr to provide a bypass, the raid bypass in the one chamber posite end to the like by pa in; chamber, as set f rth.

7. In a rubber preparing machine, the combination of a trough cmnprising intercommunicating chambr a partition or ridge extending lonn'itndinally from end to end of the trough in form said cl'iambers, a C(mtinuou:-, spiral pr pcllcr in each chamber occupying,- approximatcly the entire width, one end of :aid propeller mtei'idcd to the end of its chamber, the opposite end npaccd away from it :nliavrnt mid of iiln: chamb r to form a b J-pw the ypasses in the reaped tire cha=.nlan., located at opposite ends.

3. In a robber preparing nimhinc. the cmnbination with tcrcminnanieating chain mn, having curved Walls, a partition or ridge extending en tir ly from end to end of the trough dividing the same into said chambers and having oppositely cur"- 9: 'r'aces, a continuous spiral propeller in earl chamber, filling the same laterally and having b yqiaescs at one end of each pmpellei'.

In tlrtliilmi) whereof I have signed my name to this apt cit tion in the presence of no eulweribing aiitnu-ises.

.lUcllN EDWARD PUINTON.

\Vitueseus BI'IR'IRAM ll. Mirrriimvs, 'ILLI A )1 ll. Bun).

being at the ops in the dd]()ll1- l sing a trough provided with in 

